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TABLE OF CONTENTS
1
1 Appliance description 2..........
1.1 Overview 2......................
1.2 Control panel 2..................
1.3 Isolation valves 2.................
1.4 Technical data 2.................
1.5 Ope ration lights 3................
2 Instructions f or use 4............
2.1 Warnings 4......................
2.2 Refilling procedure 4..............
2.3 Ignition 4........................
2.4 C.h. circuit temperature 5..........
2.5 D.h.w. temperature 6..............
2.6 Extinguishing 7..................
2.7 Built in time switch 7..............
3Usefuladvice 10.................
3.1 Central heating 10.................
3.2 Frost pr otection 10................
3.3 Periodic maintenance 10...........
3.4 External cleaning 10...............
3.5 Operational faults 10...............
4 Technica l information 12..........
4.1 Overview 12......................
4.2 Main diagram 13..................
4.3 Technical data mod. M110.24SM/... 14
4.4 Technical data mod. M110.32SM/... 16
4.5 Hydraulic specifications 18.........
4.6 Expansion vessel 18...............
5 General requirements 19..........
5.1 Related documents 19.............
5.2 Location of appliance 19...........
5.3 Flue system 19....................
5.4 Gas supply 20....................
5.5 Air supply 20.....................
5.6 Ventilation 20.....................
5.7 Condensate drain 20..............
5.8 W ater circulation (c.h.) 21...........
5.9 Domestic water 22.................
5.10 W ater treatment 22................
5.11 Electrical supply 22................
6Installation 23....................
6.1 Warnings 23......................
6.2 Precautions for installation 23.......
6.3 Installing the bracket 23............
6.4 Overall dimensions 24.............
6.5 Joints 24.........................
6.6 Mounting the b oiler 24.............
6.7 Fittingthefluesystem 25...........
6.8 Choice of flue 25..................
6.9 Electrical connections 26...........
6.10 External frost protection 28.........
6.11 External temperature probe (optional) 28
7 Commissioning 30...............
7.1 Electrical installation 30............
7.2 Gas supply installation 30..........
7.3 Filli ng the d.h.w. system 30.........
7.4 Initial filling of the system 30........
7.5 Condensate pipe and traps 31......
7.6 Lighting the boiler 31..............
7.7 Checking the gas supply pressure 32
7.8 Maximum output in c.h. mode 33....
7.9 External temperature probe setting
(optional) 33......................
7.10 Checking the ignition device 34.....
7.11 Checking the flue system 34........
7.12 Checking th e condensate drain pipe 34
7.13 Instructing the user 34.............
8 Maintenance 35..................
8.1 Warnings 35......................
8.2 Dismantling the external panels 35...
8.3 Emptying the d.h.w. system 35......
8.4 Emptying the c.h. system 35........
8.5 Combustion ana lysis check 36......
8.6 Cleaning the condensing heat
exchanger and burner 36...........
8.7 Checking the pressurisation
in the expansion vessel 37..........
8.8 Cleaning the burner 37.............
8.9 Checking the flue 37...............
8.10 Drain pipe inspecti on 37............
8.11 Visual inspection of appliance 37....
8.12 Gas p ressures and soundness 37...
8.13 W ater inhibitor concentration 37.....
Abbreviations used in the manual:
C.h. = Central heating
D.h.w. = Domestic hot water
D.c.w. = Domestic cold water
USE
INSTALLATIONMAINTENANCE